Boiler Service Plans: What to Actually Compare Before You Sign Up
Service plans range from 'annual service only' to 'service plus breakdown cover', and the difference between tiers matters more than the headline price.
Start With What's Actually Included
The most important question when comparing service plans isn't the price — it's the scope. Some plans cover only the annual boiler service. Others add call-out cover for breakdowns, and some go further to include parts. Two plans priced similarly can cover very different things, so ask for a plain list of what's included and what's explicitly excluded before comparing numbers.
Check What Counts as a 'Breakdown'
If a plan includes call-out cover, ask what triggers it. Some exclude pre-existing faults, some exclude issues related to a lack of servicing, and most exclude anything unrelated to the boiler itself, such as radiator or pipework problems. Understanding these boundaries matters more once you actually need to use the cover than it does when you're signing up.
Ask About Response Expectations
If breakdown cover is included, ask what a typical response time looks like, and whether that changes at weekends or during peak winter demand — which is exactly when breakdowns are most likely and response times matter most.
New Boiler vs Older Boiler
A newer boiler is less likely to break down, but it still needs an annual service to keep its manufacturer warranty valid — so a plan that automatically schedules this can be useful even when nothing is likely to go wrong for a while. An older boiler may benefit more from a plan that includes call-out cover, simply because the likelihood of needing it is higher.
Cancellation and Renewal Terms
Ask about notice periods for cancelling, and how renewal works from year to year. A plan that auto-renews without a clear reminder can be easy to forget about — which defeats one of the main points of having a plan in the first place, since the value is in not having to remember.
Landlords Comparing Plans Across a Portfolio
If you manage more than one rented property, ask whether a plan can track each property's service date and any Gas Safety Certificate renewal separately, rather than treating a portfolio as a single undifferentiated account.
Frequently asked questions
What's the difference between a service-only plan and a full cover plan?
A service-only plan covers just the scheduled annual boiler service. A full cover plan typically adds call-out response for breakdowns, and sometimes parts, on top of the annual service.
Does a service plan cover issues with radiators or pipework, not just the boiler?
Usually not by default — most plans focus on the boiler itself. If whole-system cover matters to you, ask specifically whether radiators and pipework are included or whether that would need a separate health check.
Is a service plan worth it for a new boiler?
Often yes, mainly because it keeps the annual service (required for most manufacturer warranties) on schedule automatically, even if breakdown cover is less likely to be needed in the first few years.